This article was downloaded by: [Oregon State University] On: 09 January 2015, At: 12:51 Publisher: Routledge Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office: Mortimer House, 37-41 Mortimer Street, London W1T 3JH, UK

Journal of Sports Sciences Publication details, including instructions for authors and subscription information:

Conference communications Published online: 14 Nov 2007.

To cite this article: (1991) Conference communications, Journal of Sports Sciences, 9:3, 325-350, DOI: 10.1080/02640419108729893 To link to this article:

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Journal of Sports Sciences, 1991, 9, 325-350

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Second International Conference on Sport, Leisure and Ergonomics Organized by the Ergonomics Society and held at Burton Manor College, Burton, Wirral, Cheshire, UK, 9-11 July 1991

Blood lead levels of British competitive cyclists G. Atkinson, D. MacLaren and C. Taylor Centre for Sport and Exercise Sciences and School of Natural Sciences, Liverpool Polytechnic, Byrom Street,

Liverpool Li 3AF, UK

This study examined the extent to which the potentially toxic lead particulates emitted from motor vehicles are absorbed by cyclists who regularly train and race on traffic-laden roads. One time-trialling Table 1. Mean (+S.E.) blood levels of the subjects Subjects Sedentary subjects Time-triallists pre-race post-race Road-racers pre-race post-race

Blood lead levels (/IM) 0.44 + 0.04 0.49 + 0.11 0.53 ±0.05 0.38 + 0.06 0.35 + 0.02

(n = 5), one road-racing (n = 5) and one sedentary control group (n = 5) were examined with respect to blood lead (PbB) levels. This measure serves as a biological indicator of lead exposure. In the two cycling groups, the PbB levels were monitored before and after (1) a time-trial (80 km) held on a dual carriageway and (2) a road race (120 km) which took place in a rural area. The mean (+S.E.) PbB levels for the subjects are shown in Table 1. 0264-0414/91 $03.00 + .12 © 1991 E. & F.N. Spon

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Conference communications

All PbB levels complied with EEC regulations regarding lead exposure. Statistical analysis revealed that differences between the pre-race PbB measures of the cycling groups and sedentary control group were not significant (P>0.05). The post-race PbB measures of the road-racers and time-triallists did not differ significantly from pre-race levels (P>0.05). However, after their respective races, the mean PbB levels of the time-triallists were significantly higher than those of the road-racers (P4>5) and II (2>1>3>4>5) were NA (76.09 and 23.91%)andJK (50.80 and 49.20%). The distance between the pternion and the distal extremity of the second digit expressed as a percentage of the maximum foot length (MFL) was found to be 98.82% (NA) and 99.40% (JK). In addition, the distance between the pternion and the distal extremity of the fifth digit relative to MFL was 82.4% (NA) and 85.5% (JK). The implication of these data is that the contour across the front of the toes of the JK population makes a less acute angle with the long axis of the foot than the NA population. Additional information with respect to foot breadth leads to the conclusion that the shape of the JK forefoot differs from that of NA, with the implication that unique shoe lasts for both populations are required for optimal shoe comfort. Relationships between habitual physical activity and osteoarthrosis in women

A.M. Hudson,1 J.A. White2 and V. Wright3 1 West London Institute, Isleworth, Middlesex,2 University of Ulster at Jordanstown, Newtownabbey, Co. Antrim and 3 Rheumatism Research Unit, University of Leeds, Leeds, UK The influence of habitual physical activity upon the prevalence and symptoms of osteoarthrosis (OA) was investigated in middle-aged and elderly women. In phase I of the study, 365 female former specialist teachers of physical education (PE) aged 48-60 years were examined radiologically and surveyed by postal questionnaire. The prevalence and symptoms of OA were compared with the Arthritis and Rheumatism Council survey reports (1956 and 1958-60) of age-matched females in the general UK population. The results of the PE teachers indicated that the prevalence of OA in the knees was significantly lower (x2 = 21.6, /*

Second International Conference on Sport, Leisure and Ergonomics.

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